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Finding the Fourth Proportional to 854,833.40, 1,282,250.10 and 818,430.20

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Solution

The fourth proportional to 854,833.40, 1,282,250.10 and 818,430.20 is: 1,227,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,833.40 : 1,282,250.10 = 818,430.20 : x
  2. Step 2: Convert to fraction form
    854,833.40/1,282,250.10 = 818,430.20/x
  3. Step 3: Cross multiply
    854,833.40x = 1,282,250.10 × 818,430.20
  4. Step 4: Simplify right side
    854,833.40x = 1,049,432,205,793.02
  5. Step 5: Solve for x
    x = 1,049,432,205,793.02/854,833.40
  6. Step 6: Final answer
    x = 1,227,645.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.